At least one-quarter of people who have severe brain injuries and cannot respond physically to commands are actually conscious, according to the first international study of its kind.
This is one of the very big landmark studies in the field of coma and other consciousness disorders, says Daniel Kondziella, a neurologist at Rigshospitalet.
The results mean that a substantial number of people with brain injuries who seem unresponsive can hear things going on around them and might even be able to use brain-computer interfaces (BCIs) to communicate.
We should be allocating resources to go out and find these people and help them, says study leader Nicholas Schiff, a neurologist at Weill Cornell Medicine.
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